diff --git a/pyproject.toml b/pyproject.toml
index c452533..6eb7981 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -15,7 +15,7 @@ requires-python = ">= 3.10"
 [project.optional-dependencies]
 lint = [
     "mypy==1.14.1",
-    "ruff==0.8.6"
+    "ruff==0.9.1"
 ]
 
 [tool.hatch.version]